These are extra characters sent to the server to notify it the connection will be terminated. Some servers don’t support these characters. You can set the SendTelnetInterruptSignal property on FtpClient to false, so these characters are not sent to the server.
Not sure if this applies to the 2003 FTP server, but you can still try it, and check the result.
Applies to Xceed FTP for .NET. Imported from legacy forums. Posted by André (had 3322 views)